The Washer,flat, cataloged under National Stock Number 5310-01-274-0041, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is General Motors Corp. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-274-0041 |
| Primary Part Number | 9421393 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-Z-325 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Overall Diameter | 1.000 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | ZINC OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.281 INCHES NOMINAL IN |
| Thickness | 0.063 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 9421393 PRIMARY | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 849124 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-274-0041 is a Washer,flat, manufactured by General Motors Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-274-0041 has 1 manufacturer part number on file: 9421393 (General Motors Corp).
Key specifications for 9421393: Surface Treatment Document and Classification: QQ-Z-325 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Overall Diameter: 1.000 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: ZINC OVERALL. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.